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Mainstay Capital Management’s Arch Capital ACGL Stock Holding History

Mainstay Capital Management’s Portfolio ACGL Stock Details ACGL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$218K Sell
2,251
-127
-5% -$12K 0.02% 138
2026
Q1 		$228K Sell
2,378
-25
-1% -$2.39K 0.02% 133
2025
Q4 		$230K Buy
2,403
+102
+4% +$9.33K 0.02% 120
2025
Q3 		$209K Sell
2,301
-1,685
-42% -$151K 0.02% 118
2025
Q2 		$363K Buy
+3,986
New +$368K 0.02% 119

Other funds holding ACGL

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
WCM Investment Management
WCM Investment Management Laguna Beach, California $55.2B AUM 57.07% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Mainstay Capital Management's ACGL Position: Q2 2026 in Review

Mainstay Capital Management reduced its Arch Capital (ACGL) stake by 5.3% in Q2 2026, selling an estimated $12K and leaving 2,251 shares worth $218K. The position accounts for 0.02% of the portfolio, ranked #138.

Mainstay Capital Management first reported a position in ACGL in Q2 2025 and has held it in 5 quarters since. The position peaked at $363K in Q2 2025. 908 funds tracked by Wall St. Rank hold ACGL as of Q2 2026.

  • Mainstay Capital Management held 2,251 shares of Arch Capital worth $218K as of Q2 2026.
  • Mainstay Capital Management sold 127 Arch Capital shares in Q2 2026, an estimated $12K.
  • Arch Capital made up 0.02% of Mainstay Capital Management's portfolio in Q2 2026, its #138 holding.
  • Mainstay Capital Management first reported a position in Arch Capital in Q2 2025 and has held it in 5 quarters since.
  • Mainstay Capital Management's Arch Capital position peaked at $363K in Q2 2025.
  • 908 funds tracked by Wall St. Rank held Arch Capital as of Q2 2026.

Based on Mainstay Capital Management's 13F filing for Q2 2026, filed 12 Aug 2026.